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Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine

  • US 6,525,504 B1
  • Filed: 02/23/2000
  • Issued: 02/25/2003
  • Est. Priority Date: 11/28/1997
  • Status: Expired due to Fees
First Claim
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1. A high voltage rotating electric machine comprising a stator, a rotor opposing said stator, andat least two windings, wherein at least one of said windings comprises a main winding in the stator for direct connection to a power network for at least one of producing and consuming power and at least one of the windings comprises an auxiliary winding in the stator for controlling the magnetic flux in the machine, and wherein at least one of said windings further comprises a cable including at least one current-carrying conductor and a magnetically permeable, electric field confining insulating cover surround the conductor comprising an inner layer having semiconducting properties in electrical contact with the conductor, a solid insulating layer surrounding and being in intimate contact with the inner layer and an outer layer having semiconducting properties surrounding and being in intimate contact with the insulation layer, said cable forming at least one uninterrupted turn in the corresponding winding of the machine.

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